A strong acid, HBr, has been dissolved into a beaker of water. If the solution is known to be 0.000 001 M, what is the pH solution?
To calculate the pH of a solution, we need to determine the concentration of H⁺ ions in the solution. In this case, we are given that the solution's concentration is 0.000001 M (also known as 1 micro-molar or 1 μM).
Since HBr is a strong acid, it fully dissociates in water to release H⁺ ions. Therefore, the concentration of H⁺ ions is the same as the concentration of HBr.
Thus, the concentration of H⁺ ions in the solution is 0.000001 M.
To calculate the pH, we can use the formula:
pH = -log[H⁺]
Taking the logarithm (base 10) of 0.000001 gives us -6, so the pH of the solution is 6.
Therefore, the pH of the 0.000001 M HBr solution is 6.